The gamma-radiolysis of liquid n-hexane. The effects of radical, electron, and positive-ion scavengers

The effects of various additives, SF6, NH3, C2H5OH, N2O, NO, SO2, and C2H4, on the product yields in the gamma-radiolysis of liquid n-hcxane at room temperature have been investigated. The following conclusions have been drawn: (i) The added SO2 acts mainly as a radical scavenger. (ii) The added NO shows not only the effect of radical scavenging, but also other effects. Therefore, it is inadequate to use NO as a simple radical scavenger. (iii) The C-7-C-12 products are formed from a combination reaction of alkyl radicals, but not from an ion-molecule reaction. (iv) The formation of C6H13+ ions by the direct action of radiation is suggested. (v) The G-value of ionization is evaluated to be 4.0. A brief discussion concerning the formation of N-2 in the presence of N2O is also given.